Ceramic sand as water treament filtering media

The micro-pore ceramic is composed of Al.O, silicon-carbide, quartz sand, the aggregate particles, anchoring agents, pores making agents, and anticorrosive. It is through the high temperature sintering to form the gapped gas-pockets of bridge arch, which are connected each other on the surface or among the internal. As the fluid is passing through these gas-pockets, it can induce all sorts of the physical or chemical interaction on the surface or among the internal of the gas-pockets, thus the aims of purifying and filtration are realized. It has the features of cold & heat resistance, chemical corrosion resistance, good mechanical strength, uniformed distribution of gas pores, long- life, easy recycling, non secondary pollution, etc. It is widely used to treatment of polluted water in plating industry, waste water after car-washing and wet dust removal waste water of boiler. Besides, it is applied to high water purification equipments for drinking water, pharmacy, electronics and optics. ItemIndexItemIndexUnit weight g/m3 1.4 1.6 Water permeability t/m2.h 1 2 Gas pore % 30 50 Porosity m3/m2.h 1.8 5.0 Pore diameter μm 30 100 Acid resistance % ≥98 Transverse strength MPa 3.5 5.0 Alkali resistance % ≥82 Crushing strength MPa 12 15 Thermal stability°c 350